Comparisons of cottonseed meal and mixtures containing urea as nitrogenous (protein) supplements.
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Tests with urea in beef cattle rations have been conducted at the Kansas Agricultural Experiment Station since 1940. In the first test, urea was compared with cottonseed meal as a source of nitrogen for fattening calves. The calves were fed individually for 168 days. Basal feeds fed to each group included ground shelled corn, Atlas sorgo silage, cane molasses and a mineral supplement. Both groups received the same quantities of these feeds. In addition, one group received cottonseed meal as a source of nitrogen. A second group received urea and enough other materials to provide the same quantities of nitrogen, energy and minerals furnished by the cottonseed meal fed to the first group.